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<?php $strings = [ 'Vanilla', 'Curaçao', 'Vanilla Ice', "Vanilla\nIce", 'वैनिला', 'فانيليا', 'དྲི་ཞིམ་ལྡན་པའི་རྩྭ།', '12345!?', "\t", " ", ]; function is_utf8_printable($string): bool { return (bool) preg_match('~^[[:print:]]+$~u', $string); } $printable = array_map(function($string) { // $is = ctype_print($string); $is = is_utf8_printable($string); return [$string => $is]; }, $strings); var_dump($printable);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9DOIE
function name:  (null)
number of ops:  11
compiled vars:  !0 = $strings, !1 = $printable
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   21     1        INIT_FCALL                                                   'array_map'
          2        DECLARE_LAMBDA_FUNCTION                              ~3      [0]
   26     3        SEND_VAL                                                     ~3
          4        SEND_VAR                                                     !0
   21     5        DO_ICALL                                             $4      
          6        ASSIGN                                                       !1, $4
   28     7        INIT_FCALL                                                   'var_dump'
          8        SEND_VAR                                                     !1
          9        DO_ICALL                                                     
         10      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9DOIE
function name:  {closure:/in/9DOIE:21}
number of ops:  8
compiled vars:  !0 = $string, !1 = $is
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   21     0  E >   RECV                                                 !0      
   23     1        INIT_FCALL                                                   'is_utf8_printable'
          2        SEND_VAR                                                     !0
          3        DO_FCALL                                          0  $2      
          4        ASSIGN                                                       !1, $2
   24     5        INIT_ARRAY                                           ~4      !1, !0
          6      > RETURN                                                       ~4
   26     7*     > RETURN                                                       null

End of Dynamic Function 0

Function is_utf8_printable:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9DOIE
function name:  is_utf8_printable
number of ops:  7
compiled vars:  !0 = $string
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   16     0  E >   RECV                                                 !0      
   17     1        FRAMELESS_ICALL_2                preg_match          ~1      '%7E%5E%5B%5B%3Aprint%3A%5D%5D%2B%24%7Eu', !0
          2        BOOL                                                 ~2      ~1
          3        VERIFY_RETURN_TYPE                                           ~2
          4      > RETURN                                                       ~2
   18     5*       VERIFY_RETURN_TYPE                                           
          6*     > RETURN                                                       null

End of function is_utf8_printable

Generated using Vulcan Logic Dumper, using php 8.5.0


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